>The reality is that almost no company is willing to foot the bill for such a level of code coverage as it makes writing the application take easily 2x as long

>The reality is that almost no company is willing to foot the bill for such a level of code coverage as it makes writing the application take easily 2x as long This is only true if the codebase uses some highly inefficient setup that makes writing/running unit tests a pain. And a general corporate policy for many companies, including big ones like Amazon, is to aim for >90% coverage with strongly typed languages like Java, regardless.